New Delhi: Trinitrotoluene (TNT), an explosive material, was used in the February 13 bombing of an Israeli diplomat's car in the high-security area of the capital, the Central Forensic Sciences Laboratory (CFSL) said in its report.

CFSL experts handed over the report recently to the Delhi Police giving its opinion about the explosive material used in the bombing of the diplomatic vehicle of Israeli diplomat Tal Yehoshua, who was seriously injured in the incident and was later flown back to Israel.

The CFSL had deputed its senior scientists for establishing the explosive material used in the terror incident, a first of its kind in which an envoy was targeted by assailants from a different country.

"It is established from samples picked from the scene of crime that TNT was used as explosive material," the 31-page CFSL report sent to the Delhi Police said.

TNT, which was first used in 1902 as an explosive material when Germans filled it in artillery shells, is termed as an insensitive explosive which enables it to be poured while in liquid form into shell cases. TNT is insensitive to shock as well as friction, which allows it to be transported and used without much risk for accidental detonation. It is also water-resistant, which allows it to be used in wet environments.

The report also talks about pieces having magnetic nature which could have been used by the terrorist identified as Houshang Afshar Irani for sticking the bomb on the envoy's car which also left four other people with minor injuries.